Display control system

Details Display control system Display control system

1993-12-15

1995-10-17

Powell, Mark R.

394164, G06F 1500

Patent

active

054598338

ABSTRACT:
A display control system for a notebook type personal computer, word processor or similar electronic apparatus requiring a power saving implementation. The system has a first memory for storing graphic data, and a control section for reading the graphic data out of the first memory repetitively. The control section has a circuit for determining whether or not the graphic data each being stored in a respective address of the first memory to be displayed side by side in a picture of the display are identical with each other, and a second memory for memorizing whether or not the data are identical with each other. When the content of the second memory is representative of identity of graphic data, the control section causes the graphic data to be displayed without reading the first memory, thereby reducing the power consumption of the system.

REFERENCES:
patent: 4881205 (1989-11-01), Aihara
patent: 5241680 (1993-08-01), Cole
patent: 5252959 (1993-10-01), Kono

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